Answers for "vue computed style"

js computed style

// window.getComputedStyle(<element>).<css-attribute>
// example :
window.getComputedStyle(document.getElementById("11")).width

vue conditional class

<div :class="{ 'prop-name': boolVar }"></div>

vue inline style bind

<div v-bind:style="{ color: activeColor, fontSize: fontSize + 'px' }"></div>

computed vue typescript

<template>
    <div>
        <input type="text" name="Test Value" id="" v-model="text">

        <label>{{label}}</label>
    </div>

</template>

<script lang="ts">
import { Component, Vue, Watch } from "vue-property-decorator";

@Component({})
export default class About extends Vue {
    private text = "test";

    get label() {
        return this.text;
    }
}
</script>


// compotion-api style vue3 default

<script lang="ts">
import { defineComponent, ref, computed } from "@vue/composition-api";

export default defineComponent({
  setup() {
    const text = ref("test");

    const label = computed(() => {
      return text.value;
    });

    return {
      text,
      label
    };
  }
});
</script>